The Danish government said there was a possible leak in the pipeline due to a pressure drop from 105 to 7 bar. Danish and German authorities have set up a 5-mile safety zone in the area of the suspected leak. It is not advisable for ships to enter this area.

The exact reason for such a significant drop in pressure in the pipeline is unknown, authorities are investigating, according to the German Ministry of Economics. And Gazprom has sent official inquiries about the situation to the operator of NSP2.